Simulating radially outward winds within a turbulent gas clump

TL;DR

This paper uses particle-based simulations to study how radially outward winds, both spherical and bipolar jets, influence the evolution of a turbulent gas clump undergoing gravitational collapse.

Contribution

It introduces a simulation approach to model the interaction of different wind geometries with collapsing turbulent gas clumps.

Findings

Winds significantly alter the velocity and density structures of the gas clump.

Spherical and bipolar winds produce distinct dynamical effects.

Simulations reveal the impact of winds on gas distribution and motion.

Abstract

By using the particle-based code Gadget2, we follow the evolution of a gas clump, in which a gravitational collapse is initially induced. The particles representing the gas clump have initially a velocity according to a turbulent spectrum built in a Fourier space of 64$^3$ grid elements. In a very early stage of evolution of the clump, a set of gas particles representing the wind, suddenly move outwards from the clump's center. We consider only two kinds of winds, namely: one with spherical symmetry and a second one being a bipolar collimated jet. In order to assess the dynamical change in the clump due to interaction with the winds, we show iso-velocity and iso-density plots for all our simulations.